Answer: 0.69 m/ mile.
Explanation:
The altitude gradient between two cities X and Y = [tex]\dfrac{\text{Altitude of City Y - Altitude of city X}}{\text{Distance between two cities}}\times100\%[/tex]
Given: Two cities are separated by 200 miles.
City X has an altitude of 122 meters.
City Y has an altitude of 260 meters.
The altitude gradient between two cities X and Y =
[tex]\dfrac{260-122}{200}=0.69\text{m/ mile}[/tex]
Hence, the altitude gradient between the two cites = 0.69 m/ mile.
